Improvement in carriage-brakes



H. B; s. DAVIS. Carriage Brake. No- 107,4 2.

Patented Sept. '20, I870.

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Letters Patent No. 107 ,462, dated September 20, 187 0'.

IMPROVEMENT IN CARR IAG-E-BRAKBS.

1 The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, I-IIRAM B. S. Davis of Farming-ton, in the county of Franklin and State of Maine, have invented a new and improved Carriage- Brake and I. do hereby declare that the following is a full, clear, and exact description thereof, which wil enable others skilled in the art to mak'e and use the same, reference being had to the accompanying drawing forming part of this specification.

I My invention relates to carriage-makes, and my object is to efiectan improved combination-of the parts operating in connection with the brake-bar.

Figure 1 is a plan view of the running part of a wagon provided with my improved brake Figure 2 a longitudinal sectional elevation of the same; and

Figure 3 is a modified arrangement, adapted to lighter carriages. 7

Similar letters of reference indicate corresponding parts.

A represents the brake-shoe supporting-bar, and

13a tongue or bar attached thereto, and extending nearly to the front axle, and then down through a slotted plate, 0.

These bars, A and- 13, are-arranged on the frames or bars D to slide back and forth a short distance, to move the brake-shoes E against the hind wheels or away from them. 4

For moving them, the front axle 1 to which the curved plate is attached, is allowed to move back and forth underthc bolster G, the king-bolt ]-I being arranged in a slotted plate, I, projecting forward of the.

axle, and attached thereto to admit of suehmovement, the same being effected by the actionof the animals in holding back in going down hill, or pulling ahead when not going down hill.

K is a small plate, attached to the under side of the bolster, and arranged to arrest the backward movement of the axle.

'lhe brake-shoes, E, are made eccentric to the pivots on the working faces L, toincrease the pressing as they are rolled downby the friction of" the facesof the wheels of the wagon, and thereby bind more effectively, with the same amount of sliding movement, than would'be the case if made concave and dependent wholly on the movement of the bar A toward the wheels for their resistance.

.In fig. 3-1 have shown a modified arrangement of the axle-bolster and king-bolt, adapted for light carriages, in which the slotted plate I is dispensed with, and a slot is made on the angle-plate K, also a groove in-the under side of the rocker G, and the king-bolt passes through the axle in the usual way.

The axle strikes against the end of the bar B and forces it back, where it may be left, to be moved forward again to relieve the wheels by the action of the latter thereon, or the bar may be connected to the axle in any suitable way to be drawn forward.

DAVIS. 

